Grid-connected PV System Using a Quasi-Z-source Inverter

This paper presents the MPPT (maximum power point tracking) and PCC (point of common coupling) current control strategy for photovoltaic (PV) grid-connected generating system using the quasi-Z-source inverter (QZSI). At first, in order to explain the above controllers, the characteristic of QZSI is...

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Bibliographic Details
Main Authors: Jong-Hyoung Park, Heung-Geun Kim, Eui-Cheol Nho, Tae-Won Chun, Jaeho Choi
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Control systems
Current control
Mesh generation
Photovoltaic systems
Power generation
Pulse width modulation
Pulse width modulation inverters
Solar power generation
Voltage control
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Summary:This paper presents the MPPT (maximum power point tracking) and PCC (point of common coupling) current control strategy for photovoltaic (PV) grid-connected generating system using the quasi-Z-source inverter (QZSI). At first, in order to explain the above controllers, the characteristic of QZSI is analyzed. And then, the MPPT control technique with a modified P&O method, the PCC current control one for the regulation of DC-link capacitor voltage, and the PWM methods for the proposed system are explained. The feasibility of the propose algorithm is verified through the simulation and experiment with 3 kW system.
ISSN:1048-2334
2470-6647
DOI:10.1109/APEC.2009.4802773